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Product Name: Acid Red 14
Chemical Name: 1-(2-sulfonatophenylazo)-2-naphthol-6-sulfonic acid disodium salt
CAS Number: 3567-69-9
Synonyms: Carmoisine, Azorubine, Food Red 3
Molecular Formula: C20H12N2Na2O7S2
Recommended Use: Coloring agent for textiles, leather, paper, cosmetics, some food and pharmaceutical products
Supplier Information: Manufacturer/supplier details and emergency contact numbers must appear here to comply with chemical safety rules and emergency response needs
Classification: Not classified as hazardous under GHS for typical concentrations; may irritate eyes, skin, respiratory tract
Main Hazards: Potential allergic reactions, breathing discomfort if inhaled, mild skin sensitivity for some individuals
Label Elements: Warning signs for skin, eye irritation may be required by workplace rules
Symptoms: Redness or itching on contact areas, coughing, sneezing if dust becomes airborne, mild headache for those sensitive to dyes
Emergency Overview: Dry dye poses little risk unless airborne; wet dye may stain and cause persistent contact redness
Main Ingredient: Acid Red 14 (Carmoisine) content usually above 85% by weight
Water: 5–10% (variable trace in powder), not a hazard
Residual Salts: Minor sodium sulfate or sodium chloride left from synthesis, rarely above 2%
Impurities: Synthesis by-products, less than 1%, not considered acutely toxic, regulatory bodies have set tight controls for color additives
Inhalation: Move person to fresh air, support breathing, seek medical attention if symptoms like coughing, wheezing, or difficulty breathing don't stop quickly
Skin Contact: Wash with soap and water, remove contaminated clothing, use moisturizer for dryness, seek care if ongoing rash develops
Eye Contact: Rinse eyes with water for several minutes, remove contact lenses, see a healthcare worker if redness or blurred vision lasts
Ingestion: Rinse mouth, do not induce vomiting, give small amounts of water, seek immediate medical help if feeling unwell
Suitable Extinguishing Media: Use water spray, foam, dry chemical powder, or carbon dioxide for fire control
Special Hazards: Burns above 210°C decompose dye and may give off toxic gases like nitrogen oxides or sulfur oxides
Protective Equipment: Wear self-contained breathing gear and protective suit, avoid inhaling combustion fumes
Firefighting Advice: Cool containers with plenty of water, keep away from runoff to drains, avoid smoke exposure
Personal Precautions: Use gloves, goggles, mask for dust, avoid skin and eye contact, stay upwind in spills
Environmental Precautions: Prevent dye from entering waterways, storm drains, soil, since strong color can disrupt aquatic environments even in small amounts
Cleaning Methods: Scoop up dry dye, place in sealed container, wash any residue with large amounts of water, ventilate area
Disposal of Cleanup Materials: Dispose in accordance with local hazardous waste handling rules
Handling: Use only in well-ventilated zones, minimize dust, wear protective gear, keep eating and drinks away from work stations
Storage: Store in tightly sealed drums away from heat, direct sunlight, moisture, and incompatible chemicals like strong oxidizers,
Incompatible Materials: Avoid mixing with oxidizing agents, acids, and reactive substances
Storage Temperature: Stable at room temperature; avoid freezing or excessive heat to preserve color properties
Exposure Limits: No official occupational exposure limits published; best practices call for keeping airborne dust under control
Engineering Controls: Use fume hoods, extraction fans, and sealed processes whenever possible
Personal Protection: Gloves made from nitrile or butyl rubber, goggles or face shields, dust mask or respirator (especially for bulk handling)
Hygiene Measures: Wash hands after handling, change clothes if contaminated, shower before leaving workplace if heavy contact occurs
Appearance: Deep red to orange-red powder or granules, water-soluble
Odor: No distinctive smell
pH: Slightly acidic in solution (pH range 5–7)
Melting Point: Decomposes above 200°C, no true melting under normal pressure
Solubility: Freely dissolves in water, very slight in alcohols or organic solvents
Flash Point: Not flammable, no flash point under normal conditions
Relative Density: 1.2–1.4 g/cm³ at 20°C
Chemical Stability: Remains stable if stored as recommended, protected from moisture and heat
Reactivity: Inert most common conditions, may react slowly with strong oxidizing agents or acids which break down the dye
Hazardous Decomposition Products: Overheating gives off potentially dangerous nitrogen oxides, sulfur oxides
Polymerization: Not likely to occur
Acute Toxicity: Ingestion of large amounts can cause stomach discomfort, rare sensitization in sensitive individuals
Skin Corrosion/Irritation: Not considered corrosive, but repeated contact dries skin and may trigger irritation in allergy-prone people
Eye Irritation: Can cause redness, running, and itching on contact
Respiratory Effects: Powder may irritate airways, lungs if inhaled
Chronic Effects: Prolonged use as a food additive considered safe within prescribed limits but not recommended for people with certain allergic conditions or sensitivity
Carcinogenicity: Not classified as carcinogenic by IARC, NTP, or OSHA for use in approved countries, though high doses in animal studies show risk
Sensitization: Reports of rare cases of allergic response in sensitive populations such as children, those prone to urticaria
Ecotoxicity: High concentrations can stain and harm aquatic environments, dye reduces sunlight penetration in water which can damage algae and fish eggs
Mobility: Water-soluble, can spread easily in waterways, strong color even at low concentration
Persistence and Degradability: Slow breakdown in soil and water, persistent if released in large quantities
Bioaccumulation: Not known to build up significantly in fish or animals, but due to persistence, continuous pollution risks exist
Aquatic Toxicity: Studies show inhibition of plant growth in high concentrations, need to keep out of ecosystem discharge
Waste Disposal Methods: Collect for hazardous waste disposal as per local codes, do not pour in drains, rivers, or on soil
Contaminated Packaging: Rinse drums and bags thoroughly, dispose under supervision of waste contractor
Recycling: Limited for synthetic dyes, usually incinerated or landfilled under controls
Special Consideration: In wastewater treatment, use activated carbon or chemical oxidation to reduce color before release
UN Number: No formal UN number for Acid Red 14
Proper Shipping Name: Not regulated as hazardous for ground, sea, or air shipment
Transport Hazard Class: Non-dangerous goods; some carriers require label for colored powder use
Packing Group: Not applicable by global shipping codes
Environmental Hazards: Keep pigments away from open waterways in transit
International Inventories: Registered under US TSCA, EU REACH, Canada DSL, Australia AICS, and similar frameworks
OSHA / WHMIS: No specific hazards identified for standard use, general chemical safety rules apply
SARA Title III, Section 313: Not listed in US reporting limits
Food Use Regulations: Use limited by agencies like FDA, EFSA, and JECFA regarding food and pharmaceuticals, strict dosing required for food-grade batches
Special Labeling: Products for consumer use need clear colorant labeling for allergy awareness and usage restrictions
Restrictions: Banned as food dye in some countries due to allergy links, legal status differs across regions
